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| Mirrors > Home > ILE Home > Th. List > nummul1c | GIF version | ||
| Description: The product of a decimal integer with a number. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| nummul1c.1 | ⊢ 𝑇 ∈ ℕ0 |
| nummul1c.2 | ⊢ 𝑃 ∈ ℕ0 |
| nummul1c.3 | ⊢ 𝐴 ∈ ℕ0 |
| nummul1c.4 | ⊢ 𝐵 ∈ ℕ0 |
| nummul1c.5 | ⊢ 𝑁 = ((𝑇 · 𝐴) + 𝐵) |
| nummul1c.6 | ⊢ 𝐷 ∈ ℕ0 |
| nummul1c.7 | ⊢ 𝐸 ∈ ℕ0 |
| nummul1c.8 | ⊢ ((𝐴 · 𝑃) + 𝐸) = 𝐶 |
| nummul1c.9 | ⊢ (𝐵 · 𝑃) = ((𝑇 · 𝐸) + 𝐷) |
| Ref | Expression |
|---|---|
| nummul1c | ⊢ (𝑁 · 𝑃) = ((𝑇 · 𝐶) + 𝐷) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nummul1c.5 | . . . 4 ⊢ 𝑁 = ((𝑇 · 𝐴) + 𝐵) | |
| 2 | nummul1c.1 | . . . . 5 ⊢ 𝑇 ∈ ℕ0 | |
| 3 | nummul1c.3 | . . . . 5 ⊢ 𝐴 ∈ ℕ0 | |
| 4 | nummul1c.4 | . . . . 5 ⊢ 𝐵 ∈ ℕ0 | |
| 5 | 2, 3, 4 | numcl 9739 | . . . 4 ⊢ ((𝑇 · 𝐴) + 𝐵) ∈ ℕ0 |
| 6 | 1, 5 | eqeltri 2307 | . . 3 ⊢ 𝑁 ∈ ℕ0 |
| 7 | nummul1c.2 | . . 3 ⊢ 𝑃 ∈ ℕ0 | |
| 8 | 6, 7 | num0u 9737 | . 2 ⊢ (𝑁 · 𝑃) = ((𝑁 · 𝑃) + 0) |
| 9 | 0nn0 9528 | . . 3 ⊢ 0 ∈ ℕ0 | |
| 10 | 2, 9 | num0h 9738 | . . 3 ⊢ 0 = ((𝑇 · 0) + 0) |
| 11 | nummul1c.6 | . . 3 ⊢ 𝐷 ∈ ℕ0 | |
| 12 | nummul1c.7 | . . 3 ⊢ 𝐸 ∈ ℕ0 | |
| 13 | 12 | nn0cni 9525 | . . . . . 6 ⊢ 𝐸 ∈ ℂ |
| 14 | 13 | addlidi 8432 | . . . . 5 ⊢ (0 + 𝐸) = 𝐸 |
| 15 | 14 | oveq2i 6069 | . . . 4 ⊢ ((𝐴 · 𝑃) + (0 + 𝐸)) = ((𝐴 · 𝑃) + 𝐸) |
| 16 | nummul1c.8 | . . . 4 ⊢ ((𝐴 · 𝑃) + 𝐸) = 𝐶 | |
| 17 | 15, 16 | eqtri 2255 | . . 3 ⊢ ((𝐴 · 𝑃) + (0 + 𝐸)) = 𝐶 |
| 18 | 4, 7 | num0u 9737 | . . . 4 ⊢ (𝐵 · 𝑃) = ((𝐵 · 𝑃) + 0) |
| 19 | nummul1c.9 | . . . 4 ⊢ (𝐵 · 𝑃) = ((𝑇 · 𝐸) + 𝐷) | |
| 20 | 18, 19 | eqtr3i 2257 | . . 3 ⊢ ((𝐵 · 𝑃) + 0) = ((𝑇 · 𝐸) + 𝐷) |
| 21 | 2, 3, 4, 9, 9, 1, 10, 7, 11, 12, 17, 20 | nummac 9771 | . 2 ⊢ ((𝑁 · 𝑃) + 0) = ((𝑇 · 𝐶) + 𝐷) |
| 22 | 8, 21 | eqtri 2255 | 1 ⊢ (𝑁 · 𝑃) = ((𝑇 · 𝐶) + 𝐷) |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1398 ∈ wcel 2205 (class class class)co 6058 0cc0 8143 + caddc 8146 · cmul 8148 ℕ0cn0 9513 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 619 ax-in2 620 ax-io 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-setind 4664 ax-cnex 8234 ax-resscn 8235 ax-1cn 8236 ax-1re 8237 ax-icn 8238 ax-addcl 8239 ax-addrcl 8240 ax-mulcl 8241 ax-addcom 8243 ax-mulcom 8244 ax-addass 8245 ax-mulass 8246 ax-distr 8247 ax-i2m1 8248 ax-1rid 8250 ax-0id 8251 ax-rnegex 8252 ax-cnre 8254 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-fal 1404 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ne 2415 df-ral 2527 df-rex 2528 df-reu 2529 df-rab 2531 df-v 2817 df-sbc 3046 df-dif 3216 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-op 3703 df-uni 3920 df-int 3955 df-br 4115 df-opab 4177 df-id 4419 df-xp 4760 df-rel 4761 df-cnv 4762 df-co 4763 df-dm 4764 df-iota 5317 df-fun 5359 df-fv 5365 df-riota 6011 df-ov 6061 df-oprab 6062 df-mpo 6063 df-sub 8462 df-inn 9255 df-n0 9514 |
| This theorem is referenced by: nummul2c 9776 decmul1 9790 decmul1c 9791 |
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